Freebird75 PE foam
Best acoustic upgrade for mechanical keyboard enthusiasts seeking a refined sound.
Elevate your Freebird 75 mechanical keyboard with the specialized PE foam from StupidFish Designs. This 0.5mm thick foam is engineered to subtly refine your typing feel and sound profile, offering enhanced acoustic dampening. Designed for a seamless fit with the stock hotswap layout and regular backspace, it's an easy upgrade for enthusiasts seeking a more refined typing experience. For those with a split backspace, a quick check with the seller ensures compatibility. It's a precision-crafted accessory for keyboard modding.
$14.00
Owner Satisfaction
4.6
/ 5
Category Rank
514
/ 1064
#514 in Input Device Accessories
Price vs Category Average
-57%
Below average
Material
PE foam
/ PE foam
Who it's for
- Keyboard enthusiasts chasing a poppy and marbly sound profile
- Builders wanting a quick, frustration-free installation process
- Typists seeking a cleaner sound without hollow case reverberation
Who should skip it
- Purists who prefer a deep, low-frequency thock sound
- Typists who prioritize maximum plate flex and softness
- Users who frequently swap switches or perform maintenance
Performance breakdown
Acoustic Dampening
Effectively mutes harsh high-frequency ping for a deeper, more satisfying sound.
Installation Simplicity
Precision-cut dimensions make for a straightforward, drop-in installation process.
Typing Feel
Adds a subtle, cushioned responsiveness that elevates the standard typing experience.
Material Quality
High-grade cross-linked PE foam maintains structural integrity under repeated switch pressure.
Layout Compatibility
Perfect for stock layouts, though split backspace users require extra verification.
Modding Utility
An essential, low-effort upgrade for enthusiasts tuning their keyboard acoustics.
Key Specs
Material
PE foam
Thickness
0.5mm
Compatibility
Freebird 75 keyboard
Layout Compatibility
Stock hotswap (regular backspace)
Switch Compatibility
Cherry MX Style
Backlight Compatibility
No
Features
- Refines typing feel and sound
- Made from cross-linked PE foam
- Specifically for Freebird 75 keyboard
- Enhances acoustic dampening
- Easy installation for modders
- Compatible with stock hotswap layout
- Improves keyboard acoustics
- Subtle sound profile enhancement
What customers say
The StupidFish Designs PE foam is overwhelmingly praised as an essential acoustic upgrade for the Freebird75 keyboard. Users consistently highlight its effectiveness in delivering the desired deep, thocky sound profile, significantly enhancing resonance and depth. A key feature is the precision engineering, offering a perfect drop in fit that requires no trimming or modification, ensuring seamless installation. This ease of use combined with the dramatic acoustic improvement makes the foam feel like a necessary enhancement. While the material is simple, the value comes from the optimized density and accurate dimensions tailored specifically for the Freebird75 structure. Enthusiasts view this as a high impact, low effort modification that maximizes the keyboard's sound potential, resulting in high satisfaction and strong recommendations.
Know before you buy
The 0.5mm PE foam helps dampen high-pitched frequencies and hollow resonance, resulting in a more muted, marbly sound profile. It effectively refines the typing experience by softening the bottom-out feel.
This specific foam is precision-cut for the stock hotswap layout with a regular backspace. If you are using a split backspace configuration, please contact the seller to confirm compatibility before purchasing.
Yes, this foam is not designed for backlighting. Because it is a solid layer of PE foam, it will block the light from your switches, so you should expect your RGB effects to be significantly dimmed or obscured.
Installation is straightforward and beginner-friendly. You simply need to remove your keycaps and switches, place the foam over the PCB, and reinstall your switches through the foam cutouts.
The foam is specifically engineered for Cherry MX style switches. While many mechanical switches follow this standard, it may not provide a proper fit for switches with significantly different housing designs.
Still have a question?
Ask Hayley anything about this product before you decide.
Ready to buy?
$14